Albert augustus wilson



MTBNTBD MAY za, 1865.

A. A. WILSON. i GOUPLING SHAFTS OF BORING TOOLS.

UNI-Ten STATES i PATENT OFFICE.

ALBERT AUGus'rUs WILSON, or GREEN POINT, NEW YORK, AssreNoR To HIMsRLF AND HOFFMAN ATKINsoN, or RoUsEvrLL-R, PA.

oouPLlNG SHAFTS OF BORING-TOOLS.'-

Specilicution forming part of Letters Patent No.' 47,907", dated fay 23,1865.

.To all whom` it may concern:

Beit known that I, ALBERT AUGUSTUS WILSON, of Green Point, in the county of Kings and `State of New York, haveinvented a new and useful improvementin securing the' joints of stems or shafts of tools used in bor ing Artesian wells; and I 'do hereby declare that the following is a full, clear, and exact description of the same, reference being 'had` to the accompanying drawings, forming part of this specification, in which- Figure l is a longitudinal section of a joint formed and secured in accordance with my invention. Figs. 2, 3, and 4 are elevations of three of the elements shown in Fig. l as they appear separated. Fig. 5 is acrosssection of the parts as they appear when keyed together in the manner `shown in Fig. 1. Fig. 6 is an elevation of the key. Figa 7 andS are different modes for eii'ecting a coupling between thelends of the parts of a shaft used in boring wel s.

Similar letters of reference in the severa-l gures indicate corresponding, parts.

The nature of my invention consists in proriding a sleeve in` connection with any two parts of the stem or shaft of tools `used in boring or drilling Artesian wells, and arranging the saine, in combination with 'a key, in such manner that -the joint formed between said parts is rendered secure, and a disconnection of one part from another accidentallyA is prevented.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawmgs.- 4

A, Figs. 1, 3, and 5, represents one part of a boring or cutting tool stem or shaft, and B, Figs. l, 2, and 5, is another part thereof. These part-s are constructed at one of their respective ends so as to couple together, as represented. The part A vis formed with a sh'ulder,l a, and from said shoulder a cylindric or con-ic steun,baaaxteiida as shown,and through this stem a taper slot, c, is cut. The part B is formed with an enlarged socket-extension, d, which may he described as a tubuiar stem, extending from a shoulder, e, of the part B, es represented, and through this tubular stein a slot, f, of taper form, is cut. From the slot f to the shoulder e a screwthread, g, is formed on the circumference of the tubular stem,`as shown.

O isa cylindric sleeve furnished on its cir-V cumference, intern-ally, with a. screw-thread,

I i, of just the length of the screw-thread g of the tubular stemd. This`,sleeve fits over the extension d, and is heldin place by its screwthread taking hold of the screw-thread g. Through this sleeve a taper slot, i, is cut. The

slot-s which are cut through the respective parts A B C form, when all are in line, one continuous taper passage through the said parts-that is, when the parts are put together and ready to be keyed. '.lhe stem b ofthe part A is cylindric, andjust fits the bore of the tubular stem d, as shown. 1

D is a taper key, of a length just equal to the greatest diameter of the ,tubular extension lal. and o f a width and breadthcmmesponding with the taper slots through the parts A B C, This key has a shoulder, j, formed on -it at one of its upper corners, and inxorder to accommodate this shoulder or ledge the upper part of the slot f is made longer than the slot in the stem b, and alike extension of the upper part of the slot i in .the sleeve C is made so as to admit the ledge through it, as will be evident from the drawings. By thus constructing the key and the passage or seat for itit just reaches through the two stemsb d, audits ends are just flush with the outer circumference ofthe tubular stem d, in which condition it is held by means ofthe ledge j, and kept' from binding upon the inner circumference of the'sleeve O. v

To connect the parts A B and prevent their sepziration, except at the will of the manager 0f the boring operation, the sleeve C is partly screwed upon the tubular stein d, so as to have the slots in both the stem d and thesleeve in .proper relation to, or register with, one another. The stem'b is next inserted into the socket of the tubular stem d to such an extent that its Vshoulder u comes in contact with the outer ends of both the sleeve and the tubular stein', and its slot registers with the slots of the stem d and sleeve C. When the parts are thus put together, there is a space between the screwed end of the sleeve andthe shoulder e similar to the'space which is represented as existing between shoulder a and open end of the sleeve G. Theparts being in this con dition, the key Dis 'driven into the slots of the sleeve andstems b d until its ends 'are just iush with the'outer circumference of the stem d. At this stage the sleeve C is screwed up against the shoulder e, as represented in Fig. 1. The screwing up of the sleeve causes the slot i therein to move out of register with the key both longitudinally and transversely, as will be evident from Figs. 1 and 5 of the drawin gs'. In Fig. 1 the position of the slot ofthe sleeve with respect to the ends of the key is shown bydotted lines. The joint thus made and secured cannot readily disconnect by reason of jarring or back-turning of the screwcoupling, as it is a matter of nice adjustment to bring the slots of the respective parts in proper register for withdrawing the key, and, besides this, several revolutions of the sleeve must occur before thekey can leave its seat.

In Fig. 7 the stem b is screw-threaded for a portion of its length, and in the end of the porj tion which is plain a slot is cut. In other respects the construction is in eii'ect the same as that shown in Fig. 1. The key D in this construction preventsv the stem b from unscrewing.

In Fig'. 8 the sleeve Gis shown as applied to astem, b, on which a right-hand and aleft-hand screw-thread is cut. With this construction any ltendencyv of the parts to unscrew in one direction is counteracted by the parts being screwed up in a reverse direction. Thus a sep-y aration cannot take place.

Ihave shown the special constructions, Figs. 7 and 8, only for the purpose of showing how otherwise the shafts might be coupled together and not with a View of claiming the same .under this patent. Iintend, however, to

apply for separate `patents upon these special modes at some future time.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. Providing the sleeve 4in connection with any Itwo parts of the stem or shaft of tools,

land arranging the same in combination with the key, substantially as and forthe purpose described.

2. The combination of the screw-thread g, shoulder e, shoulder a, and sleeve 0,"inthe construction of the coupling ends of well-horer shafts or stems,.substantially as and for the purpose herein described.

' ALBERT AUGUSTUS wILsoN.

Witnesses:

R. T. CAMPBELL, E. SCHAFER. 

